Olds 394 thermostat housng

Old May 8th, 2019, 07:07 AM
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Olds 394 thermostat housng

Need!!! Please!!!! Cant believe nobody repops this.

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Old May 8th, 2019, 08:17 AM
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Someone made one on a 3D printer not long ago on here. It would take me a while to find the thread but maybe he could make another one?
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Old May 8th, 2019, 08:18 AM
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Old May 8th, 2019, 09:14 AM
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It was a favor ... I'm afraid i don't have the resources to make another one. I would check on having that one welded. Mine was not broken but actually way worse than yours as it was totally shot fulls of holes from corrosion. i was able to find a guy who welded it up. That is now my back up part.
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Old May 8th, 2019, 09:43 AM
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Just a good idea or as a emergency repair....

I made mine from a piece of 8mm flat stock I believe it is called as a flange, and a 90 degree weld pipe fittings. Turned out beautyfull. It is a little taller than OE, but it does not matter at all.
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Old May 8th, 2019, 12:28 PM
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Originally Posted by Jandk View Post
Just a good idea or as a emergency repair....

I made mine from a piece of 8mm flat stock I believe it is called as a flange, and a 90 degree weld pipe fittings. Turned out beautyfull. It is a little taller than OE, but it does not matter at all.
Yep. Looks like making it is the way to go



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Old May 8th, 2019, 01:46 PM
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Epic fail. In my previos attempt to re clock a different thermostat, My flange was too thin and when i tightened it down, it tweaked. 8mm or 5/16 sounds about the right thickness.. Prototype number 2 in the works.
stay tuned
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Old May 9th, 2019, 12:33 PM
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Originally Posted by 70chevrolet View Post
Epic fail. In my previos attempt to re clock a different thermostat, My flange was too thin and when i tightened it down, it tweaked. 8mm or 5/16 sounds about the right thickness.. Prototype number 2 in the works.
stay tuned
Before I made mine from scrath, I bought an adjustable Chevrolet 350 thermostat housing and modified it to fit. I never finished the process of making it pretty, then I made one from scrath.

Biggest challenge was not to warp the flange part when welding.
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Old May 10th, 2019, 04:58 AM
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It'll work. Honestly though, your original can be fixed. I just dropped mine off at the local guy who does all the aluminum trailer and pontoon boat repair. $40 and water tight.
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Old May 10th, 2019, 09:27 PM
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I am pretty sure I have 1 of them if you still need
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Old May 15th, 2019, 05:04 AM
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all set! in the interest of saving time I just ponied up 100 bones and bought one on ebay.. who'd have ever thought. $100 for a water outlet,
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Old May 15th, 2019, 05:12 AM
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Years ago the thermostat housing on my 64 98 cracked in the same spot. I had it welded.

Excellent that you sourced a replacement. Post a pic when you get it back together!
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Old May 15th, 2019, 03:26 PM
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Might be able to help you with a N.O.S. at far less than what you spent for one (ouch!!)...
Let me know if you want a spare....

Always best to simply call me -- Craig -- 516 - 485 - 1935.....
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Old May 15th, 2019, 06:34 PM
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$100?? You got screwed and paid the highest price on planet Earth. I mean you could of bought one for $70 on EBay.... and that includes the actual intake manifold as well
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Old May 15th, 2019, 08:40 PM
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Maybe paid a bit much, but what do you do?
If you are have a hard time to find the part, gotta pay the reaper
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Old May 16th, 2019, 05:26 AM
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Make sure you keep the broken thermostat housing. You can always have it repaired as a back up or at least toss it in the spare parts bin when you sell the car.
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Old May 16th, 2019, 11:08 AM
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My 2 cents, $100 is not out of line. I looked on ebay for months and there were NONE. I called the tech advisor for these cars and even talked to Judy Badgely. NONE to be found.
Remember they are specific to last years of 394, and specific to 4 barrel cars too.
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